azagrebin commented on a change in pull request #6777: [FLINK-10461] [State
Backends, Checkpointing] Speed up download files when restore from DFS
URL: https://github.com/apache/flink/pull/6777#discussion_r236200642
##########
File path:
flink-state-backends/flink-statebackend-rocksdb/src/main/java/org/apache/flink/contrib/streaming/state/RocksDBStateBackend.java
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@@ -686,6 +729,13 @@ public RocksDBNativeMetricOptions
getMemoryWatcherOptions() {
return options;
}
+ /**
+ * Gets the thread number will used for downloading files from DFS when
restore.
+ */
+ public int getRestoredThreadNum() {
+ return restoredThreadNum;
Review comment:
here we could return `restoredThreadNum` if it is not -1 (defined) and
`CheckpointingOptions.CHECKPOINT_RESTORE_THREAD_NUM.defaultValue()` if
`restoredThreadNum` is still -1 (undefined).
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